HitTextHelper.java

package com.sogouchat.search;


public class HitTextHelper {
	public static CharSequence GetHitText(String str,String strKey){
		if (strKey!=null && !strKey.equals("")) {
			int nPosStart =0;
			int nPosEnd = 0;
			nPosEnd = str.indexOf(strKey,nPosStart);
			HtmlCreate create= new HtmlCreate();
			while (nPosEnd>=0 && nPosEnd<str.length()) {
				String strLeft = str.substring(nPosStart,nPosEnd);
				String strKeyBuff = str.substring(nPosEnd,nPosEnd+strKey.length());
				create.AddString(strLeft);
				//create.AddStringByColor(strKeyBuff, "aqua");
				create.AddStringByColor(strKeyBuff, "blue");
				nPosStart = nPosEnd+strKey.length();
				if (nPosStart<str.length()) {
					nPosEnd = str.indexOf(strKey,nPosStart);
				}else {
					break;
				}
			}
			String strRight = str.substring(nPosStart, str.length());
			create.AddString(strRight);
			return create.Get();
		}else {
			return str;
		}
	}
}